just thought that maybe the 90W charger is just be for the increased power needed for the docking station (i know the advanced port replicator comes with that one), i don't know if it would actually charge it faster.
about the static through the headphone jack, i doubt it is similar to the carbon, i have the carbon and that was an issue with certain headphones and a metal base, which was resolved in later editions of the carbon through an internal fix
I just bought the d610, and plan on buying the smallest usb sound adapter i can find so i can enjoy my music